nginx日志输出json格式

nginx 默认输出acces日志格式是message格式。现在都做日志统一分析ELK了，message格式就不是很适用了。 所以输出json格式对于后期分析就很友好了。

其他就不说了，直接上配置了

修改 nginx.conf 配置文件， 注释掉之前 log_format 重新写一个 json格式的log_format

#log_format  main  '$hostname $server_name $remote_addr - $remote_user [$time_local] "$request" '
 #                 '$status $body_bytes_sent "$http_referer" '
 #                 '"$http_user_agent" "$http_x_forwarded_for" "$upstream_addr" '
 #                 '"$upstream_response_time" "$request_time" "$http_cookie"';

log_format main   '{"@timestamp":"$time_iso8601",'
                    '"@source":"$server_addr",'
                    '"hostname":"$hostname",'
                    '"remote_user":"$remote_user",'
                    '"ip":"$http_x_forwarded_for",'
                    '"client":"$remote_addr",'
                    '"request_method":"$request_method",'
                    '"scheme":"$scheme",'
                    '"domain":"$server_name",'
                    '"referer":"$http_referer",'
                    '"request":"$request_uri",'
                    '"requesturl":"$request",'
                    '"args":"$args",'
                    '"size":$body_bytes_sent,'
                    '"status": $status,'
                    '"responsetime":$request_time,'
                    '"upstreamtime":"$upstream_response_time",'
                    '"upstreamaddr":"$upstream_addr",'
                    '"http_user_agent":"$http_user_agent",'
                    '"http_cookie":"$http_cookie",'
                    '"https":"$https"'
                    '}';

access_log  /var/log/nginx/access.log  main;

重新加载nginx，这样日志就是json格式了